CN204284342U - A kind of high frequency screw motion signal scanning device - Google Patents
A kind of high frequency screw motion signal scanning device Download PDFInfo
- Publication number
- CN204284342U CN204284342U CN201420747657.XU CN201420747657U CN204284342U CN 204284342 U CN204284342 U CN 204284342U CN 201420747657 U CN201420747657 U CN 201420747657U CN 204284342 U CN204284342 U CN 204284342U
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- China
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- adapter
- axle
- gear
- inner ball
- ball surface
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Abstract
The utility model belongs to mechanical field, discloses a kind of high frequency screw motion signal scanning device, comprises housing; Enclosure interior is provided with main shaft and adapter; The spherical support that is connected below described adapter and adapter axle, spherical support arranges in inner ball surface groove bearing thereunder, its sphere contacts with the inner ball surface of inner ball surface groove bearing and can relative sliding, the upper end of adapter axle through inner ball surface groove bearing, bottom the spherical support that is connected; The bottom of adapter axle is installed with axle sleeve; Side wall of shaft sleeve outer surface is provided with spacing groove; Described main shaft upper end is connected as one by interference fit and pedestal, pedestal is fixed with clamping piece spring and gear shaft, and on gear shaft, cover has gear and cam disk, and gear matches with spiral chute track.The utility model achieves the spiral motion of adapter under single power source, can three-dimensionally scan space, place, improves the signals collecting ability of system.
Description
Technical field
The utility model belongs to mechanical field, relates to high speed compound motion, is specifically related to a kind of high frequency screw motion signal scanning device.
Background technique
Through accumulation and development for a long time, mechanical device life and production field all greatly to we providing facility, but along with the development of information technology, in order to adapt to the requirement of accurate control and information processing, system is proposed higher requirement to the rapid response of mechanical device and accurate reliability.Such as just requiring to gather antenna in the collecting device of the signal of system can the scanning region of high-speed and continuous.These devices comprise high-velocity scanning radar, the antenna assembly etc. of Intelligent electric magnetic field navigation vehicle.In these scanning device, in order to ensure the high speed and accurately of compound motion, the motor that mechanical device self must rotate using realizes the superposition of motion as power source, the friction pair simultaneously between mechanical parts is wanted to be lubricated well.
Existing signal collector generally adopts single straight-tooth gear or spiral gear drive mechanism, and to realize the scanning motion rotated, its Sweep range, in the space range of an independently moving, can only be realized by the rotary motion of flat plane antenna.Although the simple reliable operation of these device structures, just no longer user demand can be met when the electromagnetic field signal in the face of more complicated high frequency changes.
Summary of the invention
For the defect existed in above-mentioned prior art and deficiency, the purpose of this utility model is, provides a kind of frequency spiral motor message scanning device.
In order to realize above-mentioned task, the utility model adopts following technological scheme:
A kind of high frequency screw motion signal scanning device, comprises housing, and described inner walls is with the inc spiral chute track of a circle; Enclosure interior is provided with main shaft and adapter;
The spherical support that is connected below described adapter and adapter axle, spherical support arranges in inner ball surface groove bearing thereunder, its sphere contacts with the inner ball surface of inner ball surface groove bearing and can relative sliding, and the upper end of adapter axle is through inner ball surface groove bearing bottom and the spherical support that is connected; Gap is had between inner ball surface groove bearing and adapter axle; The bottom of adapter axle is installed with axle sleeve; Side wall of shaft sleeve outer surface is provided with spacing groove;
Described main shaft upper end is connected as one by interference fit and pedestal, pedestal is fixed with clamping piece spring and gear shaft, and on gear shaft, cover has gear and cam disk, and gear matches with spiral chute track, and gear and cam disk are connected, and the two can rotate around gear shaft; The sidewall of described cam disk contacts with the inwall of spacing groove; Main shaft lower end connects motor output shaft.
Further, described adapter axle is provided with groove, the shaft shoulder position of adapter axle is provided with preloading spring, and described preloading spring upper end is tight against the bottom of inner ball surface groove bearing, and the lower end of preloading spring is stuck in the groove of adapter axle.
Further, described main shaft upper end by bearings below pedestal.
Further, described main shaft lower end is connected with motor output shaft by external splines.
Further, the disk of porose centered by described cam disk cam face.
Compared with prior art, the utility model has following technique effect:
1, realizing the spiral motion under single power source, the mode adopting sphere to combine by adding a cam disk on gear, making motion continuous gently, three-dimensionally can scan pre-set space, improve the signals collecting ability of system.
2, achieve the adjustability design of scanning space and scanning cone angle, improve the efficiency of signal collection work to a great extent, the accurate fast reaction for information processing provides machinery reliably and ensures.
Accompanying drawing explanation
Fig. 1 is the half sectional view of plan view of the present utility model;
Fig. 2 is the partial sectional view of A-A position of the present utility model;
Fig. 3 is the B place partial enlarged drawing of gear and spiral chute track;
Fig. 4 is the right side view of axle sleeve;
Fig. 5 is the plan view of axle sleeve;
Fig. 6 is the structure sectional view of spiral chute track;
Fig. 7 is motion schematic diagram of the present utility model;
Number in the figure represents: 1-adapter, 2-spherical support, 3-inner ball surface groove bearing, 4-adapter axle, 5-preloading spring, 6-axle sleeve, 7-gear, 8-cam disk, 9-housing, 10-spiral chute track, 11-pedestal, 12-clamping piece spring, 13-main shaft, 14-bearing, 15-limited impression, 16-gear shaft, 17-bearing.
Below in conjunction with drawings and Examples, particular content of the present utility model is described in more detail.
Embodiment
Below provide specific embodiment of the utility model, it should be noted that the utility model is not limited to following specific embodiment, all equivalents done on technical scheme basis all fall into protection domain of the present utility model.
Embodiment
Defer to technique scheme, composition graphs 1,2,3,4,5,6 and 7, the high frequency screw motion signal scanning device of the present embodiment, comprises housing 9, and described housing 9 inwall is with the inc spiral chute track 10 of a circle; Housing 9 inside is provided with main shaft 13 and adapter 1, and adapter 1 is for having certain thickness disk.
The spherical support that is connected below adapter 12 and adapter axle 4, spherical support 2 arranges in inner ball surface groove bearing 3 thereunder, its sphere contacts with the inner ball surface of inner ball surface groove bearing 3 and can relative sliding, and the upper end of adapter axle 4 is through inner ball surface groove bearing 3 bottom and the spherical support 2 that is connected; Gap is had between inner ball surface groove bearing 3 and adapter axle 4; The bottom of adapter axle 4 is installed with axle sleeve 6, and axle sleeve 6 wall outer surface is provided with spacing groove 15; Adapter 1, adapter axle 4 are integrated with spherical support 2, and spherical support 2 and inner ball surface groove bearing 3 realize the connection of kinematic pair, realize the motion of high-speed and continuous, make motion continuous gently, can without ground, dead point scanning pre-set space.
Main shaft 13 upper end is connected as one by interference fit and pedestal 11, and does dynamic balance running; Pedestal 11 is fixed with clamping piece spring 12 and gear shaft 16, on gear shaft 16, cover has gear 7 and cam disk 8, and gear 7 matches with spiral chute track 10, and gear 7 and cam disk 8 are connected, and the two can rotate around gear shaft 16; The sidewall of described cam disk 8 contacts with the inwall of spacing groove 15; The disk of cam face porose centered by cam disk 8.
Axle sleeve 6, under the effect of clamping piece spring 12, contacts with cam disk 8; Cam disk 8 and the relative movement of axle sleeve 6 are limited on the length direction of spacing groove 15 by spacing groove 15, and cam disk 8 can be resisted against on the inner side surface of spacing groove 15 simultaneously, thus drive the rotation of adapter axle 4 in circular movement direction.
Main shaft 13 lower end is connected with motor output shaft by external splines, thus completes transmission of power.
Optionally, adapter axle 4 is provided with groove, the shaft shoulder position of adapter axle 4 is provided with preloading spring 5, and preloading spring 5 upper end is tight against the bottom of inner ball surface groove bearing, and the lower end of preloading spring 5 is stuck in the groove of adapter axle 4.Preloading spring 5 makes the outer spherical surface of spherical support 2 and the inner ball surface close contact of inner ball surface groove bearing 3, and ensure that adapter 1 moves accurately under the drive of adapter axle 4, screw motion is done in both guarantees.Lubrication between two spheres can adopt normal temperature grease lubrication.
Optional main shaft 13 is by 2 bearings 14,17, be supported on below pedestal 11, bearing 14,17 can adopt deep groove ball bearing or needle bearing, by high-speed motion splash lubrication, effective oil mist lubrication can be produced, reduce wearing and tearing, improve impact resistance, less impulsive load can be produced by assurance device under high-speed motion.
Alternatively, spiral beveled wheel 7 has 40 teeth.
High frequency screw motion signal scanning device of the present utility model, specific works process is as follows:
When the motor connected when main shaft 13 lower end inputs with high rotating speed, device is started working: see Fig. 7, the bottom point of adapter axle 4 is from vertical zero line position setting in motion, its movement locus is the helix shown in Fig. 7, change in consecutive periods, and drive adapter 1 ceaselessly to scan in its visual-field space.
The mechanical process that the compound motion of helix realizes is: main shaft 13 is with drive motor output shaft High Rotation Speed, band moving base 11 moves, gear 7 and cam disk 8 under the drive of pedestal 11 around main shaft 13 axis High Rotation Speed, because axle sleeve 6 and cam disk 8 tightly force together by clamping piece spring 12, therefore axle sleeve 6 moves in a circle under the drive of cam disk 8; When the rotary centrifugal force of axle sleeve 6 acquires a certain degree, clamping piece spring 12 departs from, and axle sleeve 6 relies on self centrifugal force to be tightly pressed against on cam disk 8;
When gear 7 rotates around main shaft 13 axis, gear 7 matches with the spiral chute track 10 on housing 9, and a tooth of gear 7 slides around track from the starting point of spiral chute track 10; When gear 7 around spiral chute track 10 move a circle arrive the terminal of track time, gear 7 next tooth just arrive the starting point of spiral chute track 10, achieve gear 7 while rotating around housing 9, reaching object around gear shaft rotation.
Drive cam disk 8 rotation while gear 7 rotation, cam disk 8 changes the spinning motion of self straight line motion of adapter axle 4 in radial direction into by axle sleeve 6, and adds on the circular movement of the bottom point being combined in adapter axle 4, so just define spiral motion; Adapter axle 4 drives adapter 1 ceaselessly to scan in its visual-field space, and realize continuous print, i.e. conical motion, the circular cone cone angle number of degrees are a, realizes the spacescan motion of antenna on adapter 1.
Device of the present utility model can realize the adjustment of sweep frequency and Sweep range by machinery adjustment: regulate main shaft 13 rotating speed to regulate sweep frequency, can regulate scanning cone angle by the cam disk 8 changing different size.Because gear has 40 teeth, main shaft 13 often rotates 40 circles, makes the lower extreme point of adapter axle 4 from its zero line position, see Fig. 7 solid line position, after outwards moving to maximum scan Angle Position, see Fig. 7 dotted line position, gets back to zero line position again; Can describe the helical that has 20 circles in the scope of 0 degree to 12 degree, the rotating speed of main shaft 13 can reach 12000 turns per minute, can realize the scanning of 5 times per second to the conical space of 12 degree of angle of releases.
Claims (5)
1. a high frequency screw motion signal scanning device, is characterized in that, comprises housing (9), and described housing (9) inwall is with the inc spiral chute track (10) of a circle; Housing (9) inside is provided with main shaft (13) and adapter (1);
Be connected below described adapter (1) spherical support (2) and adapter axle (4), spherical support (2) arranges in inner ball surface groove bearing (3) thereunder, its sphere contacts with the inner ball surface of inner ball surface groove bearing (3) and can relative sliding, and the upper end of adapter axle (4) is through inner ball surface groove bearing (3) bottom and the spherical support that is connected (2); Gap is had between inner ball surface groove bearing (3) and adapter axle (4); The bottom of adapter axle (4) is installed with axle sleeve (6); Axle sleeve (6) wall outer surface is provided with spacing groove (15);
Described main shaft (13) upper end is connected as one by interference fit and pedestal (11), pedestal (11) is fixed with clamping piece spring (12) and gear shaft (16), the upper cover of gear shaft (16) has gear (7) and cam disk (8), gear (7) matches with spiral chute track (10), gear (7) and cam disk (8) are connected, and the two can rotate around gear shaft (16); The sidewall of described cam disk (8) contacts with the inwall of spacing groove (15); Main shaft (13) lower end connects motor output shaft.
2. high frequency screw motion signal scanning device as claimed in claim 1, it is characterized in that, described adapter axle (4) is provided with groove, the shaft shoulder position of adapter axle (4) is provided with preloading spring (5), described preloading spring (5) upper end is tight against the bottom of inner ball surface groove bearing, and the lower end of preloading spring (5) is stuck in the groove of adapter axle (4).
3. high frequency screw motion signal scanning device as claimed in claim 1, is characterized in that, described main shaft (13) upper end is supported on pedestal (11) below by bearing (14), (17).
4. high frequency screw motion signal scanning device as claimed in claim 1, it is characterized in that, described main shaft (13) lower end is connected with motor output shaft by external splines.
5. high frequency screw motion signal scanning device as claimed in claim 1, is characterized in that, the disk of cam face porose centered by described cam disk (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420747657.XU CN204284342U (en) | 2014-12-01 | 2014-12-01 | A kind of high frequency screw motion signal scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420747657.XU CN204284342U (en) | 2014-12-01 | 2014-12-01 | A kind of high frequency screw motion signal scanning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204284342U true CN204284342U (en) | 2015-04-22 |
Family
ID=52867504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420747657.XU Expired - Fee Related CN204284342U (en) | 2014-12-01 | 2014-12-01 | A kind of high frequency screw motion signal scanning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204284342U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238185A (en) * | 2018-09-30 | 2019-01-18 | 江苏省水利科学研究院 | A kind of bridge pier real-time safety monitoring system and monitoring method |
-
2014
- 2014-12-01 CN CN201420747657.XU patent/CN204284342U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238185A (en) * | 2018-09-30 | 2019-01-18 | 江苏省水利科学研究院 | A kind of bridge pier real-time safety monitoring system and monitoring method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20161201 |